Added 7.0 refresh release for Jan 2020

Added 7.0 refresh release

Author: athinanthny

articles/service-fabric/release-notes.md

@@ -56,9 +56,12 @@ This tool helps validate that types used in reliable collections are forward and
 
 In addition, this release contains other new features, bug fixes, and supportability, reliability, and performance improvements. For the full list of changes, please refer to the [release notes](https://github.com/Azure/service-fabric/blob/master/release_notes/Service_Fabric_ReleaseNotes_70.md).
 
+### Service Fabric 7.0 releases
+
 | Release date | Release | More info |
 |---|---|---|
 | November 18, 2019 | [Azure Service Fabric 7.0](https://techcommunity.microsoft.com/t5/Azure-Service-Fabric/Service-Fabric-7-0-Release/ba-p/1015482)  | [Release notes](https://github.com/Azure/service-fabric/blob/master/release_notes/Service_Fabric_ReleaseNotes_70.md)|
+| January 30, 2020 | [Azure Service Fabric 7.0 Refresh Release](https://techcommunity.microsoft.com/t5/azure-service-fabric/azure-service-fabric-7-0-second-refresh-release/ba-p/1137690)  | [Release notes](https://github.com/Azure/service-fabric/blob/master/release_notes/Service-Fabric-70CU2-releasenotes.md)|
 
 
 ### Service Fabric 6.5